[PATCH 4/4] watchdog: aspeed: Propagate errors from optional IRQ lookup

[Guenter Roeck]

On Fri, Aug 07, 2026 at 03:16:52PM +0700, phucduc.bui at gmail.com wrote:
> From: bui duc phuc <phucduc.bui at gmail.com>
> 
> platform_get_irq_optional() returns a positive IRQ number on success or
> a negative error code on failure. For an optional IRQ, -ENXIO indicates
> that no IRQ is available, while other errors should be propagated.
> 
> Propagate errors such as -EPROBE_DEFER and -EINVAL instead of continuing
> probe without the IRQ.
> 
> Signed-off-by: bui duc phuc <phucduc.bui at gmail.com>
> ---
>  drivers/watchdog/aspeed_wdt.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c
> index c9e79851504c..48454ac86074 100644
> --- a/drivers/watchdog/aspeed_wdt.c
> +++ b/drivers/watchdog/aspeed_wdt.c
> @@ -429,6 +429,8 @@ static int aspeed_wdt_probe(struct platform_device *pdev)
>  	if (wdt->cfg->irq_mask) {
>  		int irq = platform_get_irq_optional(pdev, 0);
>  
> +		if (irq < 0 && irq != -ENXIO)
> +			return irq;
>  		if (irq > 0) {

This if () is no longer needed.

Thanks,
Guenter

>  			ret = devm_request_irq(dev, irq, aspeed_wdt_irq,
>  					       IRQF_SHARED, dev_name(dev),